Some hits, some misses. It's hard for anybody to say with authority just how many should have been hits but were not. I think it's unrealistic to expect ALL of

Some hits, some misses. It's hard for anybody to say with authority just how many should have been hits but were not. I think it's unrealistic to expect ALL of them to be a net win. Nobody can predict the future, not even Google. NOTE TO SELF: start a web-based service that successfully predicts the future. Sell out to Google.